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Segment Information - Net Sales by Product Family- Excluding Intercompany Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net sales	$ 812,021	$ 666,707	$ 1,974,437	$ 1,710,875
Pointing Devices
Segment Reporting Information [Line Items]
Net sales	140,983	142,166	386,700	382,249
Keyboards & Combos
Segment Reporting Information [Line Items]
Net sales	126,372	125,289	361,685	359,824
PC Webcams
Segment Reporting Information [Line Items]
Net sales	27,280	30,503	80,371	80,072
Tablet & Other Accessories
Segment Reporting Information [Line Items]
Net sales	26,648	24,852	80,650	59,351
Video Collaboration
Segment Reporting Information [Line Items]
Net sales	46,252	35,807	128,008	88,298
Mobile Speakers
Segment Reporting Information [Line Items]
Net sales	147,377	106,578	300,843	261,046
Audio-PC & Wearables
Segment Reporting Information [Line Items]
Net sales	84,435	67,225	197,082	186,058
Gaming
Segment Reporting Information [Line Items]
Net sales	173,802	107,181	365,232	242,874
Smart Home
Segment Reporting Information [Line Items]
Net sales	38,692	26,942	73,481	49,916
Other
Segment Reporting Information [Line Items]
Net sales	$ 180	$ 164	$ 385	$ 1,187

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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